Organized and Federally recognized 30 January 1914 in the Kentucky National Guard at Richmond as Company M, 1st Infantry

Mustered into Federal service 25 June 1916 at Fort Thomas, Kentucky; drafted into Federal service 5 August 1917

Converted and redesignated 15 October 1917 as Company G, 113th Ammunition Train, an element of the 38th Division

Demobilized 8 January 1919 at Camp Zachary Taylor, Kentucky

Reorganized and Federally recognized 10 May 1922 in the Kentucky National Guard at Louisville as Headquarters Detachment and Combat Train, 2d Battalion, 138th Field Artillery, an element of the 38th Division

Converted and redesignated 1 May 1974 as Headquarters and Headquarters Detachment, 198th Military Police Battalion

Ordered into active Federal service 8 August 1980 at Louisville; released from active Federal service 22 August 1980 and reverted to state control

Consolidated 30 September 1990 with the 223d Military Police Company (organized in 1878 at Louisville) and consolidated unit designated as the 223d Military Police Company

Ordered into active Federal service 3 January 1991 at Louisville; released from active Federal service 25 May 1991 and reverted to state control

Former Headquarters and Headquarters Detachment, 198th Military Police Battalion, withdrawn 1 May 1995 from the 223d Military Police Company and reorganized as Headquarters and Headquarters Detachment, 198th Military Police Battalion (223d Military Police Company – hereafter separate lineage)

Ordered into active Federal service 9 October 2001 at Louisville; released from active Federal service 28 June 2002 and reverted to state control

Ordered into active Federal service 1 December 2005 at Louisville; released from active Federal service 29 May 2007 and reverted to state control